Walking wheel up-down lifting device of four-way vehicle and four-way vehicle

Abstract

The utility model discloses a walking wheel up-and-down lifting device of a four-way vehicle. The walking wheel up-and-down lifting device comprises a pair of guide blocks, a sliding block, a jacking mechanism and a telescopic universal joint. Wherein the pair of guide blocks are arranged on the two sides of the walking wheel and fixedly connected with a frame of the four-way vehicle; the two ends of the sliding block are in sliding connection with the pair of guide blocks correspondingly. The walking wheels are arranged on the sliding block. The output end of the jacking mechanism is connected with the sliding block and can drive the sliding block to move up and down. One end of the telescopic universal joint is connected with the walking wheel and can drive the walking wheel to rotate, and the other end of the telescopic universal joint is connected with an output shaft of a walking driving mechanism of the four-way vehicle. The utility model further discloses a four-way vehicle which comprises a plurality of walking wheel up-and-down lifting devices of the four-way vehicle in the previous embodiment. The jacking device is accurate in jacking height, not prone to abrasion and compact in structure; and during jacking, the traveling wheels can not stop rotating, so that the transverse traveling wheels and the longitudinal traveling wheels of the four-way vehicle share the same traveling driving mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of four-way vehicles, and particularly relates to a walking wheel up-and-down lifting device and a four-way vehicle for a four-way vehicle. Background Art

[0002] With the rapid development of the social economy and the improvement of the logistics distribution efficiency in all walks of life, there are fewer fault points required, and accordingly, various four-way vehicle devices have been derived.

[0003] At present, when the four-way vehicles existing on the market change direction and move, they are of the heavy load type with the load off-center. At present, most of the reversing structures of the jacking mechanisms on the market adopt cam-type jacking. The cams are easily worn, and the jacking height will be inaccurate after long-term use. In addition, when the jacking descends, the walking shaft also needs to be linked, resulting in a very large space required for the walking shaft. Summary of the Invention

[0004] According to an embodiment of the utility model, a walking wheel up-and-down lifting device for a four-way vehicle is provided, which includes:

[0005] A pair of guide blocks are arranged on both sides of the walking wheel and are fixedly connected to the frame of the four-way vehicle;

[0006] A slider, both ends of the slider are slidably connected to the pair of guide blocks, and the walking wheel is arranged on the slider;

[0007] A jacking mechanism, the output end of the jacking mechanism is connected to the slider and can drive the slider to move up and down;

[0008] A telescopic universal joint, one end of the telescopic universal joint is connected to the walking wheel and can drive the walking wheel to rotate, and the other end is connected to the output shaft of the walking drive mechanism of the four-way vehicle.

[0009] Furthermore, V-shaped chutes are arranged on the guide blocks, and V-shaped parts slidably connected to the V-shaped chutes are arranged on the slider.

[0010] Furthermore, the jacking mechanism includes:

[0011] A fixed seat, the fixed seat is fixedly connected to the frame of the four-way vehicle;

[0012] A screw-nut mechanism, the screw-nut mechanism is rotatably connected to the fixed seat, and the top of the screw of the screw-nut mechanism is connected to the slider;

[0013] A bevel gear set, the output gear of the bevel gear set is sleeved on the nut of the screw-nut mechanism, and its output gear is connected to an external drive mechanism through a rotating shaft. The external drive mechanism drives the screw of the screw-nut mechanism to move up and down through the bevel gear set.

[0014] Furthermore, the jacking mechanism further includes: a connecting plate, and the screw of the screw-nut mechanism is fixedly connected to the slider through the connecting plate.

[0015] According to another embodiment of the present utility model, a four-way vehicle is provided, which includes a walking wheel up-and-down lifting device of several four-way vehicles in the previous embodiment.

[0016] The walking wheel up-and-down lifting device and the four-way vehicle of the four-way vehicle according to the embodiment of the present utility model have accurate jacking height, are not easily worn, and have a compact structure; while jacking, the walking wheels can be made not to stop rotating, so that the transverse and longitudinal walking wheels of the four-way vehicle use the same walking drive mechanism.

[0017] It should be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is a first schematic structural diagram of a walking wheel up-and-down lifting device of a four-way vehicle according to an embodiment of the present utility model installed on a frame of the four-way vehicle;

[0019] Figure 2 FIG. 2 is a second schematic structural diagram of a walking wheel up-and-down lifting device of a four-way vehicle according to an embodiment of the present utility model installed on a frame of the four-way vehicle;

[0020] Figure 3 FIG. 3 is a schematic diagram of a three-dimensional view of a jacking mechanism according to an embodiment of the present utility model;

[0021] Figure 4 FIG. 4 is a top view of the jacking mechanism according to an embodiment of the present utility model;

[0022] Figure 5 FIG. 5 is a sectional view taken along line A-A of Figure 4 DETAILED DESCRIPTION OF THE EMBODIMENTS DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE PRESENT UTILITY MODEL WILL BE DESCRIBED IN DETAIL BELOW WITH REFERENCE TO THE DRAWINGS.

[0023] First, a walking wheel up-and-down lifting device of a four-way vehicle according to an embodiment of the present utility model will be described in conjunction with

[0024] First, the walking wheel up-and-down lifting device of the four-way vehicle according to the embodiment of the present utility model will be described in conjunction with Figures 1-5 which is widely used in the four-way vehicle.

[0025] As Figures 1-5 shown, the walking wheel up-and-down lifting device of the four-way vehicle according to the embodiment of the present utility model includes:

[0026] A pair of guide blocks 1, which are arranged on both sides of the walking wheel and fixedly connected to the frame 5 of the four-way vehicle;

[0027] A slider 2, the two ends of which are respectively slidably connected to the pair of guide blocks 1, and the walking wheel is arranged on the slider 2;

[0028] The lifting mechanism 3, the output end of the lifting mechanism 3 is connected to the slider 2, and can drive the slider 2 to move up and down;

[0029] The telescopic universal joint 4, one end of the telescopic universal joint 4 is connected to the traveling wheel, can drive the traveling wheel to rotate, and the other end is connected to the output shaft of the traveling drive mechanism of the four-way vehicle.

[0030] Further, as Figures 1-2 shown, in this embodiment, a V-shaped chute 11 is provided on the guide block 1, and a V-shaped portion 21 slidably connected to the V-shaped chute 11 is provided on the slider 2, and the V-shaped chute 11 plays a role of guiding and limiting.

[0031] Further, as Figures 3-5 shown, in this embodiment, the lifting mechanism 3 includes:

[0032] A fixed seat 31, the fixed seat 31 is fixedly connected to the frame 5 of the four-way vehicle;

[0033] A screw-nut mechanism 32, the screw-nut mechanism 32 is rotatably connected to the fixed seat 31, the top of the screw 321 of the screw-nut mechanism 32 is connected to the slider 2, with high transmission accuracy and not easy to wear;

[0034] A bevel gear set 33, the output gear 332 of the bevel gear set 33 is sleeved on the nut 322 of the screw-nut mechanism 32, and its input gear 331 is connected to an external drive mechanism through a rotating shaft, and the external drive mechanism drives the screw 321 of the screw-nut mechanism 32 to move up and down through the bevel gear set 33.

[0035] Further, as Figures 1-2 shown, in this embodiment, the lifting mechanism 3 further includes: a connecting plate 34, and the screw 321 of the screw-nut mechanism 32 is fixedly connected to the slider 2 through the connecting plate 34.

[0036] According to another embodiment of the present invention, a four-way vehicle is provided, which includes a traveling wheel lifting device of several previous embodiments of the four-way vehicle.

[0037] Working principle: The traveling drive device drives the traveling wheel to rotate through the telescopic universal joint 4. When the lifting mechanism 3 drives the slider 2 to move upward along the guide block 1, the telescopic universal joint 4 extends; conversely, the telescopic universal joint 4 shortens. In this way, when the lifting mechanism 3 lifts the traveling wheel, it does not delay the rotation of the traveling wheel.

[0038] Above, with reference to Figures 1-5A lifting device for the driving wheels of a four-way vehicle and a four-way vehicle according to an embodiment of the present utility model are described. The lifting height is accurate, the device is not easily worn, and the structure is compact. While lifting, the driving wheels can keep rotating, so that the transverse and longitudinal driving wheels of the four-way vehicle can share the same driving mechanism.

[0039] It should be noted that in this specification, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0040] Although the content of the present utility model has been introduced in detail through the above preferred embodiments, it should be understood that the above description should not be construed as a limitation of the present utility model. After those skilled in the art have read the above content, various modifications and alternatives to the present utility model will be obvious. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims

1. A four-way vehicle travel wheel up and down lifting device, characterized in that: Include: A pair of guide blocks, which are arranged on both sides of the traveling wheel and are fixedly connected to the frame of the four-way vehicle; A slider, both ends of which are slidably connected to the pair of guide blocks respectively, and the travel wheel is arranged on the slider; A lifting mechanism, wherein the output end of the lifting mechanism is connected to the slider and can drive the slider to move up and down; A telescopic universal joint, one end of which is connected to the travel wheel to drive the travel wheel to rotate, and the other end of which is connected to the output shaft of the travel drive mechanism of the four-way vehicle.

2. The walking wheel lifting device for a four-way vehicle as claimed in claim 1, characterized in that: The guide block is provided with a V-shaped sliding groove, and the sliding block is provided with a V-shaped portion slidably connected to the V-shaped sliding groove.

3. The walking wheel lifting device for a four-way vehicle as claimed in claim 1, characterized in that: The lifting mechanism comprises: A fixing seat, the fixing seat being fixedly connected to the frame of the four-way vehicle; A screw-nut mechanism, wherein the screw-nut mechanism is rotatably connected to the fixing seat, and the top of the screw of the screw-nut mechanism is connected to the slider; A bevel gear set, wherein the output gear of the bevel gear set is sleeved on the nut of the screw nut mechanism, and the output gear is connected to an external driving mechanism through a rotating shaft, and the external driving mechanism drives the screw of the screw nut mechanism to move up and down through the bevel gear set.

4. The walking wheel lifting device for a four-way vehicle as claimed in claim 3, characterized in that: The lifting mechanism further comprises: a connecting plate, through which the screw of the screw-nut mechanism is fixedly connected to the sliding block.

5. A four-way vehicle, characterized in that: The invention comprises a plurality of walking wheel up-and-down lifting devices of the four-way vehicle as described in claims 1 to 4.

Images